void do_unsetenv(t_env *env, char *line)
{
size_t pos;
char *tmp;
size_t len;
pos = 0;
while (pos < ENV_TABLE_SIZE && env->env_table[pos][0])
{
tmp = get_env_name(env->env_table[pos]);
len = strlen(tmp);
if (!strncmp(tmp, line, len) && (line[len] == ' ' || line[len] == '\t'))
{
memcpy(env->env_table[pos], env->env_table[pos + 1], ENV_TABLE_CONTENT_SIZE);
while (pos < ENV_TABLE_SIZE && env->env_table[pos + 1][0])
{
memcpy(env->env_table[pos], env->env_table[pos + 1], ENV_TABLE_CONTENT_SIZE);
++pos;
}
env->env_table[pos][0] = '\0';
return ;
}
++pos;
}
}
char *get_env_var(char *var, char **envp)
{
char *tmp;
if (!var || !*var)
return (NULL);
while (*envp)
{
tmp = get_env_name(envp, 0);
if (ft_strequ(tmp, var))
{
ft_strdel(&tmp);
tmp = ft_strdup(*envp + ft_strlen(var) + 1);
return (tmp);
}
ft_strdel(&tmp);
envp++;
}
return (NULL);
}
static void do_setenv_insert(t_env *env, char buffer[ENV_TABLE_CONTENT_SIZE])
{
const char error[] = {"setenv: Too many environment variables\n"};
size_t element;
element = 0;
while (element < ENV_TABLE_SIZE && env->env_table[element][0])
{
if (env_name_match(get_env_name(env->env_table[element]), buffer))
{
memcpy(env->env_table[element], buffer, ENV_TABLE_CONTENT_SIZE);
return ;
}
++element;
}
if (element < ENV_TABLE_SIZE)
{
memcpy(env->env_table[element], buffer, ENV_TABLE_CONTENT_SIZE);
env->env_table[element + 1][0] = '\0';
}
else
write(2, error, sizeof(error) - 1);
}
